Home / 330,526.93-455,959.28-215,872.75

Finding the Fourth Proportional to 330,526.93, 455,959.28 and 215,872.75

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Solution

The fourth proportional to 330,526.93, 455,959.28 and 215,872.75 is: 297,794.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,526.93 : 455,959.28 = 215,872.75 : x
  2. Step 2: Convert to fraction form
    330,526.93/455,959.28 = 215,872.75/x
  3. Step 3: Cross multiply
    330,526.93x = 455,959.28 × 215,872.75
  4. Step 4: Simplify right side
    330,526.93x = 98,429,180,992.20
  5. Step 5: Solve for x
    x = 98,429,180,992.20/330,526.93
  6. Step 6: Final answer
    x = 297,794.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.